Easy Chart Caculate Pens - Show the driving pen value instead of the calculated value for mouseover text

Ignition
1

Hello,

I’m using Ignition 7.9 and I need to display on the same chart several process value having different range of possible values.

In order to do that, I have created calculate pens with Multiply function that show all values on one axis by experessing values as percentage of the possible range so all values are between 0 and 100.

The problem I have is when I mouse over the pens, the value that is displayed is the calculated value and I would like to see the driving pen value. Does someone know how to display the driving pen value instead of the calculated pen in easy charts?

2

Is there any reason you don’t just add more axes definitions? You can hide the extra axes to not clutter your chart. No scaling required, and your tooltips will be correct.

3

Sounds good ! Thanks.

4

Can we natively hide the axis in an easy chart? Or do I have to use configureChart script?

5

You need to sse configureChart(). I believe you’ll find examples of hiding axes here on the forum.

6

I’ll found it in the JFreeChart doc thanks :slight_smile:

For those who need, you can hide value axis of an Easy Chart with the following code in configureChart function:

	plot = chart.getPlot()
	
	#Axis indexes starts at 0.
        #In this case the second Axis of the list will be hidden	
        axis = plot.getRangeAxis(1)
	axis.setVisible(False)
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